Window cleaner&#39;s safety anchor



July 13, 1937. w. L. HARRISON WINDOW CLEANERS SAFETY ANCHOR Filed June25; 1935 UNETED STATES PATNT caries WENDOW CLEANERS SAFETY ANCHORWilliam L. Harrison, Chicago, 11]., assignor to lllarrison-WeiseCompany, Chicago, 111., a. corporation of Illinois Application June 25,1935, Serial No. 28,318

6 Claims.

This invention relates to window safety anchors to insure the safety ofwindow cleaners, and to which anchors the ends of the window cleanerssafety belt are fastened to prevent him from falling while cleaningwindows at greater or less heights.

Formerly safety anchors were made with their ends formed into lag screwsto be screwed into each side of the wooden window casing, with theattendant danger of the wood becoming rotten, rusting of the threads,etc., and the anchor pulling out. Then later came into use safetyanchors extending entirely through-the window casing, wall or the like,with nuts or other fastening means, for securing the inner ends of theanchor rods to a metal bar or the like, but in these devices the anchorwas made of several separate parts which ultimately would becomeloosened with respect to each other because of rust, strains or othercauses, and ultimately become unsafe. And this is true even were suchparts spot welded together, for the reason that 'the'area of a spot weldis so small that in time it will rust throughand the parts of the anchorbecome loose.

. The value of human life is so great as to demand the very highestsafeguards against danger.

'As is well known, window cleaners in cities have to perform theirduties at great heights, where a single slip or misstep will'in aninstant of time cause their very lives, as well as the lives of otherson the street below, to be entirely dependent upon the safety anchors towhich their safety belt is attached. It is thus apparent that the.n-eedis tremendously great for safety anchors that are as nearperfection as possible.

Among the objects of the present invention is to provide such safetyanchors that will be at all times dependable and possess the maximumdegree of safety. V

Anotherobject is to provide a safety anchor in which the various partsare integrally united and capable of easy installation in the building.

A further object is to provide a safety anchor having no joints tobecome weakened from rust or other causes.

A still further object is to provide a safety anchor thatis forged intoa single piece.

Another object is the provision of safety anchors that combine speed ofattachment of the ends of the safety belt thereto with maximum safety;

Other objects, advantages and capabilities will tion, construction andarrangement of parts i1- lustrated in the accompanying drawing, andwhile I have shown therein preferred embodiments, I

wish it understood that the same are susceptible V of modification andchange without departing from the spirit of my invention.

In the drawing:--

Fig. 1 is a perspective view of a safety anchor embodying my invention.

Fig. 2 is a, side elevation of the safety anchor shown in Fig, 1.

Fig. 3 is an end elevation of the safety anchor shown in Figs. 1 and 2.

Fig. 4 is a view partly in section showing one manner of attachment ofthe safety anchor to a metal window casing.

Fig. 5 is a view partly in section showing a pair of my safety anchorunits attached to a mullion.

Fig. 6 is a view partly in section showing one of my improved safetyanchor units attached to a hollow metal casing.

Fig. 7 is a view partly in section showing a pair of my safety anchorunits attached to a metal window casing.

Fig. 8 is a fragmentary front elevation showing one of my improvedsafety anchor units attached to a stone window jamb.

Fig. 9 is a fragmentary transverse horizontal section through Fig. 8.

Fig. 10 is a fragmentary side elevation of the inner end of the anchorrods and showing the bar to which they are secured in the general typeof construction shown in Figs. 8 and 9.

Fig. 11 is a modified form of safety anchor shown in side elevation.

Fig. 12 is a fragmentary front elevation of a brick window jamb showingthe type of safety anchor shown in Fig. 11 applied thereto.

Fig. 13 is a fragmentary transverse horizontal section through Fig. 12.

Referring more specifically to Figs. 1 to 7, inclusive, which show thepreferred form of my improved safety anchor unit, the parts of thesafety anchor unit (with the exception of the nuts which secure the samein place) are all made integrally in one piece preferably by forging,and preferably of a substantially non-corrosive metal. The body portionI has integrally formed therewith the neck portions '2, on each of whichis formed the head 3 overwhich the clips on the ed by forming the upperand lower faces of the body portion I at an angle to each other. Or inother words, one edge of the body portion is thicker than the other. Thepurpose of having the neck portions 2 stand at an angle will be readilyunderstood by an inspection of Figs. l, 5, 6 and '7, in which it will beseen that this angularity places the heads 3 and necks 2 in betterposition to have the safety belt clips placed thereover, and alsolessens sidewise strains that would otherwise tend to bend the neckportions 2.

In securing these safety anchor units in position in metal windowcasings, mullions and the like (see Figs. 4, 5, 6 and 7), the threadedrodlike extensions 4 will each be inserted through a corresponding holein the web, flange or the like 5, and the nut 6 with a split springwasher or the like 1 therebeneath screwed tightly into place. Thistightly secures the safety anchor units in position for use, with theheads 3 of each unit in vertical alinement with each other.

In Fig. 7 the metal window casing is shown at 8, and the upper and lowerwindow sash at 9 and 50, respectively. In Fig. l the metal window casingM is provided with the guide strip 92. Fig. 5 shows two of my safetyanchor units applied to a metal mullion having the outer faces 5 and theinwardly extending flange l3.

In the form shown in Figs. 1-7, it is seen that the safety anchor unit(with the exception of the nut and spring washer) is integrally made inone piece of non-corrodible metal, and thus affords maximum strength andsafety, for the reason that there are no separate parts to becomel-oosened from one another or detached. The unit is accordinglypractically everlasting, and due to the neck and head protrudingoutwardly at the proper angle is instantly available for use withoutsetting up strains sidewise therein to bend and weaken the parts. In theform shown in Figs. 8, 9 and 10, the rodlike extensions M are madelonger to accommodate the greater thickness of a stone, brick, concreteor other form of masonry wall. Also the neck 15 protrudes straightinstead of at an angle (but it may extend angularly if desired). Thehead in this form is shown at Hi. There is also provided the anchorplate [1, which is formed With properly spaced holes to receive therod-like extensions l4, and nuts l8 then screwed on the ends thereof tofirmly secure the safety anchor unit in place in the masonry wall.Underneath the nuts are placed split spring washers I?) to hold the nutsagainst loosening. In this form the parts (with the exception of thenuts, spring washers, and plate H) are also integrally formed in asingle piece, preferably by forging. The face of the stone window jambis shown at 26, and the window sash at 2!. The two neck portions l 5 areintegrally connected by the body portion 22.

In Figs. 11, 12 and 13 are shown another form having the body portion23, the neck portions 24, the heads 25 and the rod-like extensions 26.In this form the inner end of each of the rodlike extensions is formedwith an angular extension El, and just back of these is the cross braceand anchor plate 28. All of the parts enumerated'are integrally formedinto a single piece, preferably by forging. This form is especiallyadapted for use in a brick wall in which the bricks are laid around thevarious parts of the safety anchor unit during the building of the wallto firmly incorporate and embed the same therein. Figs. 12 and 13 showthis form of safety anchor unit as built into a brick wall, with theheads 25 and neck portions 24 protruding for attachment thereto of theclips on the ends of the safety belt.

Having now described my invention,

I claim:

1. In window construction a masonry window jamb, a safety anchor unitsecured thereto, said unit comprising a body portion from which extendson one face thereof a pair of spaced headed neck portions, and fromwhich body portion extends from the opposite face a pair of spaced,elongated rod-like extensions in respective alinement with the neckportions, said rod-like extensions extending through the masonry jamb,the said body portion, pair of headed neck portions, and pair of spacedelongated rod-like extensions being made integrally in a single piece, across bar having spaced openings through which the end portions of therod-like extensions extend, and nuts threaded on said end portions totighten the cross bar against the inner face of the jamb and said bodyportion against the outside of said jamb, with said headed neck portionsextending outwardly to permit a safety belt to be attached thereto.

2. A safety anchor unit comprising a body member, a pair of spaced neckportions extending from one face of said body portion, an enlarged headon the free end of each of said neck portions, a pair of spaced rod-likeextensions extending from the opposite face of said body portion andrespectively in alinement with the neck portions, each of said rod-likeextensions having at its end a laterally extending angular portion, across brace connecting the rod-like extensions adjacent the laterallyextending angular portions, all of said parts being integrally formed ina single piece.

3. In window construction a masonry window jamb, a safety anchor unitcomprising a body portion adapted to bear against the outer face of saidjamb, a pair of spaced, headed neck portions extending outwardly fromthe body portion and adapted to receive and hold a safety belt clip, apair of spaced, rod-like extensions extending from the opposite face ofthe body portion, a laterally extending angular projection on the end ofeach rod-like extension, a cross brace connecting said rod-likeextensions adjacent said angular projections, said safety anchor unitbeing adapted to have the masonry material placed therearound during thebuilding of the jamb, so that the unit is securely anchored in the jambwith the said headed neck portions projecting outwardly therefrom, theparts of said unit being integrally formed in a single piece.

4. A safety anchor unit comprising an elongated body portion having arear face, a front face angularly positioned with relation to the rearface, said body portion being thicker at one edge than the other, a pairof spaced headed projections extending outwardly and forwardly from thefront. face and positioned one adjacent each end of the body portion, apair of spaced rodlike extensions extending rearwardly from the rearface, said rod-like extensions being directly opposite the headedprojections respectively, the angularity of the front and rear facesresulting in the pair of headed projections extending at an angletowards a window when applied adjacent thereto, said parts beingintegrally formed into a single piece.

5. A safety anchor unit comprising an elongated body portion having arear face adapted to seat against the outer face of a window casing,said body portion being thicker at one edge than the other, the frontface of the body portion being angularly disposed with relation to therear face, a pair of'spaced headed projections positioned one adjacenteach end of the body portion and protruding outwardly from said frontface at an angle to the outer face of the Window casing when appliedthereto, a pair of spaced rod-like extensions protruding from said rearface, each of the rod-like extensions being directly opposite one of thespaced headed projections so that the pull on the headed projectionswill be transmitted directly to the rod-like extensions, said partsbeing integrally formed into a single piece, the rear end of each of therod-like extensions being threaded to receive a nut to fasten the anchorunit securely to a window casing, a nut for each of said threadedportions, the angularity of the front face of the body portion to therear face causing the headed projections to extend at an angle toward aWindow when applied adjacent thereto, said anchor unit being fastened ata plurality of spaced points to the window casing, whereby the unitcannot turn while in use and the pull of the safety belt upon the headedprojections will be transmitted directly through the rod-like extensionsto the window casing with full safety to the operator.

6. A safety anchor unit comprising an elongated body portion having afront face and a rear face of I generally angular inclination to eachother for substantially the entire length of the body portion, a pair ofspaced headed projections protruding outwardly and forwardly from thefront face of the body portion and a pair of spaced rod-like extensionsprotruding rearwardly from the rear face of the body portion, each ofthe rod-like extensions being directly opposite one of the headedprojections and angularly inclined with relation thereto so that thepull on each headed projection will be transmitted directly to arod-like extension, said parts being integrally formed into a singlepiece.

WILLIAM L. HARRISON.

